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3 years ago

(Algebra II) Solve the equation or formula for the indicated variable.

Mathematics

1 answer:

Vedmedyk [2.9K]3 years ago

5 0

Divide by A and b5 to both sides. You can rule out option A and B. You're dividing both sides by 4b5 to isolate h by itself. Remember that when you didivde by same term aa=1 you get ONE. so h is alone. The answer is D.

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Two vectors and are given by and . If these two vectors are drawn starting at the same point, what is the angle between them

castortr0y [4]

Answer: hello your question is incomplete below is the complete question

The Two vectors; A = 5i + 6j +7k and B = 3i -8j +2k.

answer;

angle = 102°

Step-by-step explanation:

multiplying the vectors

A.B = |A| * |B|* cosθ

hence : Cosθ = (Ai*Bi )+ (Aj*Bj) + ( Ak*Bk/ (√A^2 *√B^2 )

= 15 - 48 + 14 /(√25+26+29) * (√9+64+4)

= -0.206448454

θ = cos^-1 ( -0.206448454) = 101.9° ≈ 102°

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3 years ago

Shakira is traveling to Europe and would like to have 800 Euros to spend while she is on her trip. How many US dollars will she

Monica [59]

Answer:

$968

Step-by-step explanation:

Multiply the conversion ratio by 800:

€1 : $1.21 = €1×800 : $1.21×800

= €800 : $968

Shakira will have to convert $968 to have the amount she would like.

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4 years ago

A random sample of 20 married women showed that the mean time spent on housework by them was 29.8 hours a week with a standard d

DanielleElmas [232]

Answer:

95% confidence interval for the mean time spent on housework per week by all married women.

( 26.66 , 32.94)

Step-by-step explanation:

Step(i):-

Given random sample size 'n' = 20

Mean of the sample (x⁻ ) = 29.8 hours

Standard deviation of the sample (S) = 6.7

Given Margin of error = 3.14

Step(ii):-

95% confidence interval for the mean is determined by

$(x^{-} - t_{0.05} \frac{S}{\sqrt{n} } , x^{-} +t_{0.05} \frac{S}{\sqrt{n} })$

We know that margin of error is determined by

$M.E = \frac{t_{0.05}XS.D }{\sqrt{n} } = 3.14$

Now 95% confidence interval for the mean time spent on housework per week by all married women.

$(29.8 - 3.14 , 29.8+3.14)$

( 26.66 , 32.94)

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3 years ago

Please please help me

rodikova [14]

Answer:

.009

Step-by-step explanation:

Move the decimal two places to the left for s and t

4 0

3 years ago

Six times the sum of a number and 4 equals 5 Write as an equation

ale4655 [162]

Answer:

6 (x+4) = 5

Step-by-step explanation:

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3 years ago

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